A gasoline radial would have required for the same trip 91 gal.
Although it is a radial, its invention gives promise of an "in-line" air-cooled successor.
Keystone Patrician18-passenger cabin monoplane fitted with 3 radial motors, one in nose and others on each side on bracing struts of the high fixed wing.
Harlan County Dam to receive repairs REPUBLICAN CITY — More than 50 years of battering by wind and water have taken their toll on the 18 huge radial gates in the Harlan County Dam spillway.
June 13, 2013 - Kearney Hub